Serb villagers who took up arms. The liberated area around Drvar and Bosansko Grahovo, under constant attack by the Ustaše, was defended by the Partisans from their surrounding positions. Bursać and other women from Kamenica joined Odbor fonda (the Funds Committee), collecting food, clothing and other supplies for the Partisans, and she made clothes for them from wool and cloth. She joined the League of Communist Youth of Yugoslavia (, or SKOJ) in September 1941. On 25 September 1941 Italian troops captured Drvar and Grahovo, but the Partisans retained control of most of the area's villages. By the end of 1941, SKOJ's Kamenica branch had 23 members; the men served in Partisan units and the women, including Bursać, joined labour companies to support the war effort. A literacy course was organised for female members, which Bursać attended. Some villagers gave agricultural products such as milk, cream and eggs to the Italians, receiving salt, kerosene and rice in return. This practice was strongly condemned by the KPJ, which gathered people from several villages in the hall of the Kamenica school in January 1942 to dissuade them from trading with the enemy. After several KPJ members spoke, Bursać began her speech, but was interrupted by disparaging comments and threats from a young man in the audience. At that moment, a group of men stormed into the hall with wooden poles and pitchforks. In the ensuing chaos Bursać shouted, "You can do nothing to us, you will not hinder us!" as the other women fled through the windows. In early 1942 she joined the village committee of the Women's Antifascist Front of Bosnia and Herzegovina ( or AFŽ), a major KPJ-affiliated women's organisation. On 13 June 1942 Drvar was retaken by the Partisans, with Bursać's labour company clearing rubble and repairing houses in the town. The company also helped in working the land of families whose men were away fighting with the Partisans. In July, Partisan units composed of fighters from Serbia and Montenegro came to Drvar, and Bursać helped carry their wounded to field hospitals in the mountains. She was one of the most active members of Kamenica's SKOJ organisation, which sometimes met at her house. The Partisan-held territory around Drvar expanded significantly, and included the Sanica River valley in late July 1942. The valley's primarily non-Serb population had fled before the advancing Partisans, whom they feared because of Ustaše propaganda. The